diff --git a/NEWS.md b/NEWS.md
index 7a362e92b..0271399b6 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,5 +1,13 @@
 # Version ?
 
+## New features and enhancements
+
+* MKVToolNix GUI: multiplexer: when the track properties are
+  configured to be displayed in a tab widget below the files & tracks
+  in the "Input" tab, the "Color information" tab will be laid out in
+  two columns. This reduces the minimum height the whole tab widget
+  requires. Implements #3401.
+
 ## Bug fixes
 
 * mkvmerge: Ogg/OGM reader: mkvmerge will now correctly skip tracks of
diff --git a/src/mkvtoolnix-gui/merge/input.cpp b/src/mkvtoolnix-gui/merge/input.cpp
index 68745c4c0..cd150152c 100644
--- a/src/mkvtoolnix-gui/merge/input.cpp
+++ b/src/mkvtoolnix-gui/merge/input.cpp
@@ -206,7 +206,8 @@ Tab::setupHorizontalScrollAreaInputLayout() {
 
   p.ui->propertiesStack->setCurrentIndex(0);
 
-  Util::autoGroupBoxGridLayout(*p.ui->generalOptionsBox, 1);
+  Util::autoGroupBoxGridLayout(*p.ui->generalOptionsBox,   1);
+  Util::autoGroupBoxGridLayout(*p.ui->colorInformationBox, 1);
 }
 
 void
@@ -241,7 +242,8 @@ Tab::setupHorizontalTwoColumnsInputLayout() {
   moveTo(p.ui->propertiesColumn2, idx++, p.ui->colorMasteringMetaInformationBox);
   moveTo(p.ui->propertiesColumn2, idx++, p.ui->videoProjectionInformationBox);
 
-  Util::autoGroupBoxGridLayout(*p.ui->generalOptionsBox, 1);
+  Util::autoGroupBoxGridLayout(*p.ui->generalOptionsBox,   1);
+  Util::autoGroupBoxGridLayout(*p.ui->colorInformationBox, 1);
 }
 
 void
@@ -275,7 +277,8 @@ Tab::setupVerticalTabWidgetInputLayout() {
   p.ui->propertiesColumn1->updateGeometry();
   p.ui->propertiesColumn2->updateGeometry();
 
-  Util::autoGroupBoxGridLayout(*p.ui->generalOptionsBox, 2);
+  Util::autoGroupBoxGridLayout(*p.ui->generalOptionsBox,   2);
+  Util::autoGroupBoxGridLayout(*p.ui->colorInformationBox, 2);
 }
 
 void